#6391F3#6391F3

#6391F3 is a light, vivid blue. Relative luminance 0.294; OKLCH L 66.9% C 0.154 H 263.8°. Best body text is #000000 at 6.88:1 contrast (WCAG AA passes).

Color values

HEX	#6391F3
RGB	rgb(99, 145, 243)
HSL	hsl(221, 86%, 67%)
HSV	hsv(221, 59%, 95%)
CMYK	cmyk(59.3%, 40.3%, 0%, 4.7%)
CIE-LAB	lab(61.11, 13.44, -53.91)
CIE-LCH	lch(61.11, 55.56, 284.00°)
OKLab	oklab(66.92% -0.0167 -0.1533)
OKLCH	oklch(66.92% 0.154 263.8)
XYZ	xyz(31.4431, 29.3718, 88.7890)
Luminance	0.2938 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6391F3 #F3C563

analogous

#63D9F3 #6391F3 #7D63F3

triadic

#6391F3 #F36391 #91F363

tetradic

#6391F3 #F363D9 #F3C563 #63F37D

square

#6391F3 #F363D9 #F3C563 #63F37D

split-complementary

#6391F3 #F37D63 #D9F363

monochromatic

#104CCC #2A69EF #6391F3 #9CB9F7 #D5E1FC

Accessibility & contrast

On white

3.05

#6391F3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.88

#6391F3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #6391F3

6.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6391F3	#FFFFFF	#000000	##000000
##6391F3	1.00	3.05	6.88	6.88
#FFFFFF	3.05	1.00	21.00	21.00
#000000	6.88	21.00	1.00	1.00
##000000	6.88	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#669BF7

Deuteranopia (green-blind)

#528DF1

Tritanopia (blue-blind)

#00A7B6

Achromatopsia (no color)

#939393

Design tokens & code

CSS

--color: #6391f3;
/* rgb */ color: rgb(99, 145, 243);
/* oklch */ color: oklch(66.9% 0.154 263.8);

Tailwind

colors: {
  custom: {
    50: '#9ab0f7',
    500: '#6391f3',
    950: '#000000',
  },
}

SCSS

$custom: #6391f3;
$custom-light: #9ab0f7;
$custom-dark: #000000;

JSON

{
  "hex": "#6391f3",
  "rgb": {
    "r": 99,
    "g": 145,
    "b": 243
  },
  "hsl": {
    "h": 220.833,
    "s": 85.714,
    "l": 67.059
  },
  "oklch": {
    "l": 0.66917,
    "c": 0.1542,
    "h": 263.8
  },
  "luminance": 0.29375
}

Semantic roles & 50–950 ramp

primary

#6391F3

secondary

#F0E1C2

accent

#9B03E2

background

#FAFAFF

surface

#F3F4FF

border

#CDCED7

text

#0F1017

muted

#7F7F85

Preview Lab

Preview with #6391F3

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →